PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

407257-1-CTransistor

Aimtron Systems, Llc · NSN 5961-01-346-3957 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-346-3957 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-346-3957. Primary manufacturer part number: 407257-1-C.
Features
  • Transistor — FSC 5961
  • Semiconductor Material: SILICON
  • Mounting Method: PRESS FIT
  • Current Rating Per Characteristic: 40.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC
  • Terminal Type and Quantity: 4 RIBBON
  • Voltage Rating in Volts Per Characteristic: 65.0 MINIMUM BREAKDOWN VOLTAGE, DC
  • Power Rating Per Characteristic: 250.0 WATTS MINIMUM TOTAL POWER DISSIPATION
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-346-3957, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Aimtron Systems, Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-346-3957
Primary Part Number407257-1-C
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAimtron Systems, Llc
StatusACTIVE
Semiconductor MaterialSILICON
Mounting MethodPRESS FIT
Current Rating Per Characteristic40.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC
Terminal Type and Quantity4 RIBBON
Voltage Rating in Volts Per Characteristic65.0 MINIMUM BREAKDOWN VOLTAGE, DC
Power Rating Per Characteristic250.0 WATTS MINIMUM TOTAL POWER DISSIPATION
Features ProvidedHERMETICALLY SEALED CASE
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5961-01-209-2807407257-1-A INTERCHANGEABLE
Transistor
Aimtron Systems, Llc
5961-01-390-4555407257-1-D INTERCHANGEABLE
Transistor
Aimtron Systems, Llc
Cross-Reference Index
Part NumberManufacturer
407257-1-C PRIMARY Aimtron Systems, Llc (USA)
MX0912B350YS Philips Semiconductors Inc (USA)
407257-1 Aimtron Systems, Llc (USA)
MX0912B350YS Philips Components (USA)
407257-1-C Cardion Inc (USA)
407257-1 Cardion Inc (USA)
Related Parts
5961-01-209-2807INTERCHANGEABLE
TRANSISTOR
407257-1-A
5961-01-390-4555INTERCHANGEABLE
TRANSISTOR
407257-1-D

Frequently Asked Questions

What is NSN 5961-01-346-3957?

NSN 5961-01-346-3957 is a Transistor, manufactured by Aimtron Systems, Llc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-346-3957?

NSN 5961-01-346-3957 has 6 cross-referenced part numbers: 407257-1-C (Aimtron Systems, Llc), MX0912B350YS (Philips Semiconductors Inc), 407257-1 (Aimtron Systems, Llc), MX0912B350YS (Philips Components), 407257-1-C (Cardion Inc) and 1 more.

What NSN replaces 5961-01-346-3957?

There are 2 known substitutes for 5961-01-346-3957: 5961-01-209-2807, 5961-01-390-4555. Verify interchangeability with system specifications before substitution.

What are the specifications of 407257-1-C?

Key specifications for 407257-1-C: Semiconductor Material: SILICON; Mounting Method: PRESS FIT; Overall Height: 0.236 INCHES NOMINAL IN; Current Rating Per Characteristic: 40.00 MILLIAMPERES MAXIMUM FORWARD CURRENT, DC. 13 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com